h2 {
  border: 10px solid blue;
}
/*注释--2*/
.font {
  font-size: 20px;
  font-family: 'Courier New', Courier, monospace;
  font-weight: bold;
}
.aa .bb .cc {
  width: 1200px;
  color: red;
  background-color: pink;
  font-size: 20px;
  font-family: 'Courier New', Courier, monospace;
  font-weight: bold;
}
.aa .bb .one {
  width: 1200px;
  color: blue;
  background-color: pink;
  font-size: 20px;
  font-family: 'Courier New', Courier, monospace;
  font-weight: bold;
}
.aa .bb .three {
  width: 1200px;
  color: green;
  background-color: pink;
}
.aa .bb .three span {
  border: 10px solid red;
}
h1 > i {
  color: blue;
}
h1:hover {
  background-color: aquamarine;
}
.one11 {
  color: #777777;
  height: 150px;
  width: 50px;
}
.one12 {
  color: red;
}
